| 000 | 00698nam a2200253 a 4500 | ||
|---|---|---|---|
| 005 | 20210219153518.0 | ||
| 008 | 991125n 000 0 u | ||
| 035 | _aUPN01000104434 | ||
| 100 | _aNelson, Marvin N. | ||
| 222 | _aSCHOOL SCIENCE AND MATHEMATICS | ||
| 245 | _aUsing a homemade calculator to master the basic facts | ||
| 300 | _a211-213 | ||
| 362 | _a91, No. 5, 1991 | ||
| 505 | _aAbril 1993 | ||
| 653 | 0 | _aADICION | |
| 653 | 0 | _aDESTREZAS MATEMATICAS | |
| 653 | 0 | _aENSE\197ANZA MATEMATICA | |
| 653 | 0 | _aMATERIALES EDUCATIVOS | |
| 653 | 0 | _aMATERIALES MANIPULABLES | |
| 653 | 0 | _aMEMORIZACION | |
| 700 | _aClark, H. Clifford | ||
| 904 |
_aAC _b042245 |
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| 905 | _aArticulo | ||
| 999 |
_c78874 _d78874 |
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